Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X80S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X80S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 80mm and 80mm give 3 controllable stop positions across a 160mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 180 mm
- Stroke 280 mm
- Total travel160 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X80S
The SCT63X80X80S is a double-acting tandem cylinder that delivers three fixed rod positions: fully retracted (0 mm), mid-stop at 80 mm, and fully extended at 160 mm. Each 63 mm bore piston section generates 1559 N of push force at 0.5 MPa, making it a compact alternative to two separate actuators for two-step linear moves.
This model includes a built-in magnet (-S suffix) for direct mounting of CMSG/DMSG/EMSG sensors, enabling precise end-of-stroke or mid-position confirmation without external brackets. The 20 mm diameter piston rod and 28 mm adjustable air cushion at each end absorb energy smoothly, while the tie-rod construction keeps the 249 mm base body length rigid during cycling.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X80S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X80S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 80 / 80 mm |
| Total travel | 160 mm |
| Stop positions | 3 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 28 mm |
| Max stroke / section | Up to 500 mm standard |
Specifications follow the official AirTAC SCT (multi-position) datasheet. SCT is available in bores 32–100; each of the two sections has a 500 mm max standard stroke (800 mm max). Confirm against the product label before installation. Thread options: PT (standard) / G.
Stop Positions (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 80 mm |
| P2 (both extended) | 160 mm |
Positions are set by pressurising section 1, section 2, or both. With equal strokes you get 3 distinct positions; with unequal strokes you get 4.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
Force is per actuated piston section (single-piston, same as the SC bore): push uses the full bore area, pull subtracts the rod area. Size with a safety margin.
Model Code: Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X80S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×80 | Stroke 1 (section 1) in mm. |
| ×80 | Stroke 2 (section 2) in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod), SCD (double rod), SCJ (adjustable stroke). SCT mounting: Basic, FA, FB, CA, CB, LB. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X80S Is Used
Two-Way Diverter Gate
Uses the 0 mm and 80 mm positions to route packages to two separate conveyor lanes without needing a second cylinder for the return stroke.
Two-Depth Press Insertion
The 80 mm and 160 mm stops set two distinct insertion depths for dowel pins or bushings, guaranteeing consistent seating at both levels.
Staged Clamping Fixture
Retracts fully at 0 mm, applies a light pre-clamp at 80 mm, then moves to 160 mm for full clamping force, protecting delicate parts from sudden impact.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X80S the Right Cylinder?
Choose the SCT63X80X80S when your application needs a simple, repeatable three-position sequence without complex servo controls. It replaces two individual cylinders or an SC actuator with external hard stops, reducing plumbing and mounting hardware. If 1559 N per section is insufficient, stepping up to the 80 mm bore provides 2513 N push at 0.5 MPa; for a lighter load, the 50 mm bore offers 982 N.
For direct replacement, match the 63 mm bore, both 80 mm strokes, PT port thread, and the -S magnet option. Since the total travel is 160 mm, ensure the rod is guided if significant side loads are present to prevent bending of the 20 mm rod.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 80 + 80 mm suit your layout?
- ✓ Required force at your working pressure
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Plumb the two sections to the correct valves for each stop.
- check Adjust end cushion screws for smooth stops.
- check Use SCT mounting accessory (FA / FB / CA / CB / LB).
- check Installation by qualified personnel per AirTAC docs.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X80S FAQ
It provides 3 distinct mechanical stops because both piston sections have an identical 80 mm stroke. The rod positions are 0 mm (fully retracted), 80 mm (first section extended), and 160 mm (both sections extended for total travel).
Yes, in many cases. The SCT63X80X80S gives you the same 80 mm and 160 mm stroke lengths as two individual cylinders but uses a single rod assembly and fewer valves. Ensure the per-section force (1559 N push at 0.5 MPa) meets your load requirement at each stop.
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